Free Mobile Apps Consume Battery Life Faster

Free mobile apps which use third-party services to display advertising consume considerably more battery life, a new study suggests.

Researchers used a special tool to monitor energy use by several apps on Android and Windows Mobile handsets. Findings suggested that in one case 75% of an app’s energy consumption was spent on powering advertisements.  author Abhinav Pathak said app makers must take energy optimisation more seriously.

Free applications typically have built-in advertisements so developers can make money without having to charge for the initial app download. Mr Pathak told the BBC that developers should perhaps think twice when utilising third-party advertising and analytics services in their app.


The research, produced by at team at Purdue University in Indiana, USA, looked at popular apps such as Angry Birds and Facebook. Due to restrictions built into Apple’s mobile operating system, the team was unable to run tests on the iPhone. In the case of Angry Birds, research suggested that only 20% of the total energy consumption was used to actually play the game itself. Of the rest, 45% is used finding out your location with which it can serve targeted advertising.

The tests were carried out by running the app over a 3G connection. The results noted that many apps leave connections open for up to 10 seconds after downloading information. In Angry Birds, that brief period – described by researchers as a “3G tail” – accounted for over a quarter of the app’s total energy consumption.

Source: BBC News

Image: Haveeru Online

Carrier IQ Accused of VoIP Call Recording

Carrier IQ Accused of VoIP Call Recording

Carrier IQ caused a huge stir when 25-year-old Trevor Eckhart discovered that it was logging all the activities a person made using his or her mobile phone. Carrier IQ was an app that had been secretly installed on most Android, BlackBerry, and Nokia phones in the US. Eckhart also posted a video that showed how the app would report almost every action that the user made on his or her device.

UK mobile networks quickly stated that they did not make use of Carrier IQ “to the best of their knowledge.” Google has also stated that Carrier IQ was not installed in any of the smartphones in their lineup, including the Nexus One, Nexus S, and Galaxy Nexus handsets.

Now more accusations against Carrier IQ have surfaced. Some are now asserting that Carrier IQ also participated in VoIP call recording. A video of the app being used on an HTC device has garnered over 1.6 million views since it was uploaded on the site since the beginning of December.

Carrier IQ has denied that the app was snooping on the messages being sent by users or on the photos that were being taken using the devices. They also denied that the app did VoIP call recording. Carrier IQ insisted that they made use of the information collected to track performance data so that carriers would be able to improve their services.

A class action suit has already been filed against companies carrying Carrier IQ, including T-Mobile, Apple, Sprint, Samsung, HTC, AT&T, and Motorola. The suit alleges “unprecedented breach of the digital privacy rights of 150 million cell phone users.”

Source: Broadbandexpert.co.uk